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…TPicker 核心变更: - 新增 TPickerOption(label, value, disabled) 数据类，label/value 分离 - 新增 TPickerValue + TPickerLoadEvent 回调类型 - 重写 TPicker: 支持 List<List<TPickerOption>> 多列独立 + Map 联动模式 - 删除 t_date_picker.dart / t_multi_picker.dart (合并入 t_picker.dart) - 删除 t_date_picker_page.dart (由 TPickerPage 替代) - onChange 命名统一 (原 onChanged) - 移除 onSelectedItemChanged 回调 - 移除 Header/弹窗逻辑 (解耦展示层) - 保留 TItemWidget / no_wave_behavior 内部组件 API 设计: - items: 数据源 (List 或 Map) - initialValue: 初始选中值 - onChange: 选中回调 (TPickerValue) - onLoad: 按需加载回调 (TPickerLoadEvent) - height/itemCount/preloadThreshold: 尺寸与加载控制 文件结构: picker/ t_picker.dart # 主组件 (307行) t_picker_option.dart # 选项数据类 t_picker_value.dart # 回调类型 t_item_widget.dart # 项渲染组件 (复用) API_REFERENCE.md # API 文档
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API 设计:
🤔 这个 PR 的性质是？
🔗 相关 Issue
💡 需求背景和解决方案
📝 更新日志
refactor(picker): 将 picker 组件只保留选择功能
本条 PR 不需要纳入 Changelog
☑️ 请求合并前的自查清单
组件类名: 修改描述（示例：TBottomTabBar: 修复iconText模式，底部溢出2.5像素）